Finding the Fourth Proportional to 50,687.49, 76,100.18 and 28,516.47

Step by Step Solution

1. Step 1: Write the proportion equation
   50,687.49 : 76,100.18 = 28,516.47 : x
2. Step 2: Convert to fraction form
   50,687.49/76,100.18 = 28,516.47/x
3. Step 3: Cross multiply
   50,687.49x = 76,100.18 × 28,516.47
4. Step 4: Simplify right side
   50,687.49x = 2,170,108,357.38
5. Step 5: Solve for x
   x = 2,170,108,357.38/50,687.49
6. Step 6: Final answer
   x = 42,813.49